Jacquard mechanism



(No Model.) 1 I HARDWICK.-

JACQ'UARD MECHANISM.

N0.,490,350. Patented Jan. 24,1893.

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' me STATES HARRY IIARDVVICK, OF PHILADELPHIA, PENNSYLVANIA.

JACQUARD MECHANISM.

SPECIFICATION forming part of Letters Patent No. 490,350, dated January24, 1893.

Application filed August 30,1392. Serial No, 444,569- (No model.) i

To aZZ whom it may concern.-

Be it known that I, HARRY HARDWIOK, a citizen of the United States,residing at Philadelphia, county of Philadelphia, and State ofPennsylvania, have invented a new and useful Improvement in JacquardMechanisms, of which the following is a full, clear, and exactdescription, reference being had to the acneedles to the rows oforifices on the card cylinder, so that with any one of the needles andits corresponding hook or tail any row of hooks may be controlled fromany one of the holes of a row in the card cylinder.

In the Jacquard mechanism the warp is connected to hooks or tails whichin turn are connected with needles, which needles are operated to throwthe hooks or tails and their corresponding warp in orout of action,bymeans of a card passing over a card cylinder provided with orificescorresponding to the needles. The predetermined pattern is obtained bycausing the warps to be operated in the predetermined manner, and thisis accomplished by cutting ornot cutting the cards opposite theseorifices so that certain needles and their corresponding hooks or tailsare thrown in or out of action, as the pattern dictates. In a singlelift jacquard, which will be the one with which I will describe myimproved mechanism, each hook or tail is connected to a single warp andeach hook or tail in turn is connected and operated by a needle. Theseneedles are arranged in rows, and thecards which travel over the cardcylinder are perforated or closed opposite these needles. As may be seenfrom this arrangement each needle and its corresponding hook or tail,and therefore the corresponding warp thread, has a corresponding placeor position upon the card cylinder, and after a set of cards have beencut it is impossible without cutting a new set of cards or changing theorder of connecting the warp to the hooks or tails, to change the warplift.

tion of a portion of the Jacquard mechanism.

Fig. 2 isvan enlarged section of the needles, needle guides andmyimproved auxiliary nee-' dle stand and needles. Fig. 3 is a face viewof Fig. 2. Fig. 4 is a perspective view of auxiliary needle box. Fig. 5is a perspective view of auxiliary needle stand. Fig. 6 is adiagrammatical view showing the operation of needles upon differentorifices in the pattern cylinder.

at, a, a dire. are the hooks 519, 1), b b b b b, 6 &IC. are the needlescontrolling the corresponding hooks or tails. These needles are arraggedin rows (as shown in the drawings 1) to 7 O is the pattern cylinderhaving the faces 0, and D is the chain of pattern cards. The cardcylinder is operated in the ordinary manner to cause its rotation so asto bring a new card at the proper time in front of the needles.Inter-posed between the needles and the card cylinder is what I denotean auxiliary needle box E.

F is the needle box stand provided with threaded horizontal portionwhich passes through an orifice in the needle guide G, which orifice isslightlylarger than the cross-section of horizontal portion of stand F.Upon the horizontal threaded portion of stand F are the nuts, f, f, bywhich it is secured in position. The stand F has a vertical portionwhich passes through orifice e in needle box E. There are two stands Ffor each box E, 'and there are corresponding orifices in the box E. Thehorizontal portion of the stand F is threaded and has upon it thenutsfif', by which itis secured in position. This auxiliary needle box Ehas in it orifices e corresponding in number and when secured tomachine, in position to the needles b &c. and the orifices in the cardcylinder opposite said nee dles. In this auxiliary box are placed what Idenote'as auxiliary needles H. These auxiliary needles H, instead ofbeing straight, as are the needles I) 850., may be bent as desired so asto bring any one of the needles b &c. of

a row into connection with any one of the holes of a row in the patterncylinder. Thus, if we denote the holes in the row in the patterncylinder by 1, 2, 3, 4, 5, 6, 7, S (which number of course may bevaried) and the corresponding needles to said orifices (if the auxiliaryneedle box and needles were not present) would be 1) corresponding to l,b to 2, b to 3, 850. Now, with the auxiliary needle box in position theneedle I) may be brought into operation in connection with orifices 2 orwith orifices 3, or with orifices 4 &c., and the same way, 19 may bebrought into operation with orifices 1 &c.

In Fig. 2 the first needle I) is shown in operation with the secondorifice and the needle I) in connection with the orifice 1. Thediagrammatical figure, Fig. 6, shows clearly a number of the changeswhich may be made. The purpose of this addition is apparent in that ifwe suppose the eight needles I) to b of a row of needles to controleight different colored warp and at a certain position in the fabric thecard cylinder and cards would, without the interposition of theauxiliary needle box, dictate the raising of the warp colors b, b b b, Ican by the interposition of this auxiliary needle box and without anyother change to the loom mechanism or to the cards, dictate the liftingof the threads b, b b if, as shown in Fig. 2 and by having a number ofthese auxiliary needleboxes and removing and replacing them at will,Ican without any other change in the loom mechanism change the coloreltect at will and leave the pattern the same. ThusI can connect needle6 of any row with any one of the orifices in the corresponding row onthe card cylinder, and so with the remainder of the needlesin one of therows.

Of course I do not intend that in every case the relation of all theneedles of the jacquard with their normal corresponding orifices in thecard cylinder shall be changed but merely that any or all of them may bechanged according as achange in the lift of the warp is desired and thehooks of the auxiliary needle box are formed to produce this result.

Having now fully described my invention, what I claim and desire toprotect by Letters Patent is:

1. The combination with the needles of a Jacquard machine and patterncylinder of auxiliary bent needles interposed between the needles andthe pattern cylinder one end of said bent needles in alignment with theneedles and the other end in alignmentwith the desired orifice in thecard cylinder the two ends being out of alignment with each other.

2. The combination with the needles of a Jacquard machine and patterncylinder of an auxiliary needle box interposed between the card cylinderand needles and having orifices corresponding in position to the needlesand orifices in the card cylinder, bent needles in said box, the ends ofsaid bent needles being opposite orifices in said needle box but out ofalignment with each other.

3. The combination with the needles of the Jacquard mechanism andpattern cylinder of auxiliary needles interposed between the Jacquardneedles and the pattern cylinder, one

end of said needles in alignment with the Jacquard needles, and theother end in alignment with the desired orifice in the card cylinder,the two ends of said auxiliary needles being out of alignment with eachother.

In testimony of which invention I have hereunto set my hand.

HARRY HARDWICK. Witnesses:

CHAS. COBB VAN RIPER, CELESTE E. GoRsLER. V

